Melting, reaction and recrystallization in a reactive PC-PBT blend

Wilkinson, Andrew; Tattum, S. B.; Ryan, Anthony J.

doi:10.1016/s0032-3861(96)00712-4

Cited by 55 publications

(51 citation statements)

References 17 publications

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“…The reactions that can occur in this system are summarised in Scheme la-c. The exchange reaction between high MW PBT and PC, ie., containing non-detectable amounts of reactive end-groups, occurs even at 240°C in the presence of an esterification catalyst, by an inner-inner mechanism (Scheme la) [4][5][6][7][8][9][10][11][12][13]401. To explore the dependence of the copolymer composition on the inner-inner exchange mechanism, we have reacted an equimolar mixture of high MW PBT and PC at 240°C in the presence of Ti(OBu)4, in a Brabender mixer for different times [40].…”

Section: Capped Pbt/pc Blendsmentioning

confidence: 99%

Copolymer Composition: a Key to the Mechanisms of Exchange in Reactive Polymer Blending

Montaudo¹,

Puglisi²,

Samperi³

1999

Transreactions in Condensation Polymers

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Section: Capped Pbt/pc Blendsmentioning

confidence: 99%

Copolymer Composition: a Key to the Mechanisms of Exchange in Reactive Polymer Blending

Montaudo¹,

Puglisi²,

Samperi³

1999

Transreactions in Condensation Polymers

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“…Blends based on PC and PBT have received much commercial attention for the last 20-30 years, especially in the automotive industry [48][49][50][51][52][53][54][55][56][57] . PC is a good engineering plastic.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, Thermal and Morphological Behaviours of Polybutylene Terephthalate/Polycarbonate Blend Nanocomposites

Rajakumar¹,

Nanthini²

2013

ILCPA

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Polybutylene Terephthalate (PBT) / Polycarbonate (PC) nanocomposite blend was fabricated using melt blending technique in a twin extruder. The blend composition was optimized at PBT-PC weight ratio of 80-20. The effect of incorporation of various organically modified Montmorillonite (OMMT) and naturally occurring sodium Montmorillonite (MMT) on the mechanical, thermal and morphological properties of the nanocomposites blend has been investigated. It was observed that the Izod impact strength, tensile strength and flexural strength demonstrated a significant increase with the increase in clay loading from 1-7 weight % due to homogeneous dispersion of clay within the blend matrix. Thermo gravimetric analysis (TGA) revealed an increase in thermal stability of the blend with the incorporation of nanoclay. There is also decrease in the melting temperature (Tm) and crystallisation temperature (Tc) as observed from DSC thermograms. DMA add the evidence for TGA, DSC and mechanical results. PBT -PC blend with clay exhibited featureless XRD indicative of exfoliated structure. TEM micrographs also confirm the same that the clay has exfoliated into individual layers.

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“…The partial miscibility of the amorphous phases (amorphous PBT and amorphous PC) in this polymer blend has been attributed to various factors such as the morphology of the crystalline phase, 28,32 transesterification reactions resulting in PC-PBT copolyesters 12,23,25,32,34 and the closeness of the solubility parameters of PC and PBT. 35 Most of these studies have been based on:…”

Section: Phase Separation and Phase Preferences In Impactmodified Pc-mentioning

confidence: 99%

Polymer blends: the PC–PBT case

Santos

Guthrie

2006

J. Mater. Chem.

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Binary polymer alloys represent a fast growing sector of the plastics industry. They can result in new materials exhibiting high degrees of synergism in behaviour and/or materials with optimal cost/performance. >Please check the proof of your paper carefully. Your proof will not be read in detail by staff after you have returned it to us. It is your responsibility to ensure that the proof has been read carefully. Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read even if an electronic file has been supplied. Please pay particular attention to: tabulated material (this may have been rekeyed); equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please fax or e-mail your corrections to us. When returning the proof by fax please also include a list detailing the corrections to be made. If responding by e-mail please send only a list of corrections -do not make any changes directly to the pdf file.This proof reflects the content and general style of the paper without the stylistic complexity of the final printed page; however, the only differences should be minor layout changes such as different line breaks, tables being double column instead of single column and improvements in graphic placement.We will endeavour to publish the article electronically on the RSC web site as soon as possible after we receive your corrections. NB: No late corrections can be made hence please ensure that only your final corrections are notified to us.Please return your final corrections, where possible within 48 hours of receipt, to:Serials Production, The Royal Society of Chemistry, Tel: +44 (0)1223 432345; Fax: +44 (0)1223 432160; E-mail: proofs@rsc.org Reprints -Electronic (PDF) reprints will be provided free of charge to the corresponding author. Enquiries about purchasing paper reprints should be addressed to: Production Operations Department (prodops@rsc.org). Costs for reprints are below: = An example of commercially important binary polymer blends is that of PC-PBT composites. The current knowledge of the physical, mechanical and chemical properties of these blends is reviewed and updated in the light of interpretations based on Lewis acid-base intermolecular interactions, as quantified by inverse gas chromatography, carried out under infinite dilution conditions. Reprint costs

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Melting, reaction and recrystallization in a reactive PC-PBT blend

Cited by 55 publications

References 17 publications

Copolymer Composition: a Key to the Mechanisms of Exchange in Reactive Polymer Blending

Copolymer Composition: a Key to the Mechanisms of Exchange in Reactive Polymer Blending

Mechanical, Thermal and Morphological Behaviours of Polybutylene Terephthalate/Polycarbonate Blend Nanocomposites

Polymer blends: the PC–PBT case

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